Proxy is a plugin that loads a plugin. The proxy plugin acts as a wrapper
that encapsulates a VDR plugin and passes through all interfaces. To make
this actually useful, the proxy plugin can modify the behavior of plugins,
like changing the menu entry, group several plugins in one sub menu and
load/unload plugins while VDR is running. This works even though proxy
is 'just' a plugin, and does not require any patches to VDR.

The proxy plugin was written on VDR versions 1.3.23 - 1.3.27, but will
probably work on older and newer VDR versions too.